package com.dandai.eduservice.controller;


import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.dandai.commonutils.R;
import com.dandai.eduservice.entity.EduTeacher;
import com.dandai.eduservice.entity.vo.TeacherQuery;
import com.dandai.eduservice.service.EduTeacherService;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;
import io.swagger.annotations.ApiParam;
import lombok.val;
import org.springframework.util.StringUtils;
import org.springframework.web.bind.annotation.*;

import javax.annotation.Resource;
import java.util.List;

/**
 * <p>
 * 讲师 前端控制器
 * </p>
 *
 * @author dandai
 * @since 2022-10-20
 */
@Api(description = "讲师管理")
@RestController
@RequestMapping("/eduservice/edu-teacher")
public class EduTeacherController {

    @Resource
    private EduTeacherService eduTeacherService;

    /**
     * @desprition 查找所有信息
     */
    @GetMapping("findAll")
    @ApiOperation("所有讲师列表")
    public R findAllTeacher() {
        val list = eduTeacherService.list(null);
        return R.ok().data("item", list);
    }

    /**
     * @desprition 逻辑删除
     */
    @DeleteMapping("{id}")
    @ApiOperation("逻辑删除讲师")
    public R deleteById(@ApiParam(name="id", value = "讲师ID", required = true) @PathVariable String id) {
        val flag = eduTeacherService.removeById(id);
        if (flag) {
            return R.ok();
        }else {
            return R.error();
        }
    }

    /**
     * @desprition 分页查询讲师的方法
     * current 当前页
     * limit 每页记录数
     */
    @GetMapping("pageTeacher/{current}/{limit}")
    public R pageListTeacher(@PathVariable long current,
                             @PathVariable long limit) {
        //创建page对象
        Page<EduTeacher> pageTeacher = new Page<>(current,limit);

        //调用方法实现分页
        //调用方法时候，底层封装，把分页所有数据封装到pageTeacher对象里面
        eduTeacherService.page(pageTeacher,null);

        long total = pageTeacher.getTotal();//总记录数
        List<EduTeacher> records = pageTeacher.getRecords(); //数据list集合

        return R.ok().data("total",total).data("rows",records);
    }

    /**
     * @desprition 条件查询带分页的方法
     * current 当前页
     * limit 每页记录数
     */
    @PostMapping("pageTeacherCondition/{current}/{limit}")
    public R pageTeacherCondition(@PathVariable long current,@PathVariable long limit,
                                  @RequestBody(required = false) TeacherQuery teacherQuery) {
        //创建page对象
        Page<EduTeacher> pageTeacher = new Page<>(current,limit);

        //构建条件
        QueryWrapper<EduTeacher> wrapper = new QueryWrapper<>();
        // 多条件组合查询
        // mybatis学过 动态sql
        String name = teacherQuery.getName();
        Integer level = teacherQuery.getLevel();
        String begin = teacherQuery.getBegin();
        String end = teacherQuery.getEnd();
        //判断条件值是否为空，如果不为空拼接条件
        if(!StringUtils.isEmpty(name)) {
            //构建条件
            wrapper.like("name",name);
        }
        if(!StringUtils.isEmpty(level)) {
            wrapper.eq("level",level);
        }
        if(!StringUtils.isEmpty(begin)) {
            wrapper.ge("gmt_create",begin);
        }
        if(!StringUtils.isEmpty(end)) {
            wrapper.le("gmt_create",end);
        }

        //调用方法实现条件查询分页
        eduTeacherService.page(pageTeacher,wrapper);

        long total = pageTeacher.getTotal();//总记录数
        List<EduTeacher> records = pageTeacher.getRecords(); //数据list集合
        return R.ok().data("total",total).data("rows",records);
    }

    /**
     * @desprition 添加讲师接口的方法
     */
    @PostMapping("addTeacher")
    public R addTeacher(@RequestBody EduTeacher eduTeacher) {
        boolean save = eduTeacherService.save(eduTeacher);
        if(save) {
            return R.ok();
        } else {
            return R.error();
        }
    }

    /**
     * @desprition 根据讲师id进行查询
     */
    @GetMapping("getTeacher/{id}")
    public R getTeacher(@PathVariable String id) {
        EduTeacher eduTeacher = eduTeacherService.getById(id);
        return R.ok().data("teacher",eduTeacher);
    }

    /**
     * @desprition 讲师修改功能
     */
    @PostMapping("updateTeacher")
    public R updateTeacher(@RequestBody EduTeacher eduTeacher) {
        boolean flag = eduTeacherService.updateById(eduTeacher);
        if(flag) {
            return R.ok();
        } else {
            return R.error();
        }
    }

}

